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Funny (in)formal fallacies

You’re probably familiar with most of the standard logical fallacies: false dichotomy, is/ought, affirming the consequent, etc. But, Ed Feser wants to alert us to a number of other very important fallacies that you’ve probably committed even though you’ve never heard of them. My favorite are the first three. Check out the post for the rest.

  • Post doc, ergo propter doc: The delusion that a Ph.D. confers wisdom, or even basic competence. Example: “Of course the medievals thought the earth was flat. It says so in the book! Who’s the professor here, anyway?”
  • Red hair-ing: Believing that something is true simply because a really hot redhead said it. Example: “Omigosh, Christina Hendricks is so hot. I would totally believe anything she says.”
  • Appeal to minority: The smug presumption that popular opinion, tradition, and plain common sense are always likely to be wrong. Often committed in conjunction with the Post doc fallacy. Example: “Of course, this goes against everything your parents, your pastor, and pretty much everyone else have always believed. So it must be true!”